Knowing your dislike for science other than that related to aeronautics, I’ll cut this pretty short. It’ll probably sound crazy to you, anyway.
You know that there’s sound above the frequencies to which the human ear will respond. You know there are light rays that the human eyes can’t perceive. Some work I’ve been doing the last five or six months indicates that there’s a form of life about us, all around us, which isn’t perceptible to our senses—which doesn’t mean that it doesn’t exist.
Well, I’m going to do a little exploring. I’m going to take a whirl at what I’ll call the Infra-Median existence. What I’ll find there, I don’t know. Life of some kind, however, for my experiments prove that. Possibly not friendly.
All this being so, there’s an off chance that I’ll find myself tangled with something I can’t anticipate. And if you are called upon to read this, then something has gone wrong with my plans.
Should you wish to take a flier after me, stand in the center of the square outlined by the four uprights of the device beside which this little table stands. Be sure your weapon—I told you to bring a gat—is on your person.
There’s a small instrument board set on one of the posts. Turn the upper of the two dials until the hand of the meter beside it moves up to 2700 exactly. Wait a moment, until you’re sure you have the exact reading. Then turn the second dial until the two red lines coincide, and as you do so, mark the time. The thing is set to operate the reverse cycle at three-hour intervals exactly. When you come down, you’ll start a new cycle, and it might be important for us to know at just what minute we can get back to our own plane.
If you decide to try it, tell Perrin to do nothing for at least a week. If the law started experimenting on this equipment, we never could climb back. And leave word with them for Hope; tell her I’ll scramble out somehow—that we will, if you decide to try your luck.
Vic
Underneath, in Hope’s clear, purposeful hand, was this:
Peter dear: